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A member asked:
I have horizontal ridges or bumps on my left thumb and right middle fingernails. may sound trivial but have never had them. should i be concerned?
4 doctors weighed in across 2 answers
Usually...: ...Due to a mild trauma to the growth plate of the nail (just under the cuticle) at some point in the past, with the ridge moving along the nail as it grows.
Answered 8/29/2019
4.5k views
Get checked: Horizontal nail ridges (or Beau’s lines) run across nail & might be signs of diabetes, thyroid disease, kidney disease. They may occur in people who had syphilis or muscles or who had chemotherapy. These should be evaluated.
Answered 11/5/2018
254 views
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